Kodi nyama za oviparous ndi ziti?

Mlembi: Peter Berry
Tsiku La Chilengedwe: 14 Kulayi 2021
Sinthani Tsiku: 16 Novembala 2024
Anonim
Kodi nyama za oviparous ndi ziti? - Ziweto
Kodi nyama za oviparous ndi ziti? - Ziweto

Zamkati

Mwachilengedwe titha kuwona zingapo njira zoberekera, ndipo imodzi mwazo ndi oviparity. Muyenera kudziwa kuti pali nyama zambiri zomwe zimatsata njira yomweyi, yomwe idawonekera kale m'mbuyomu kuposa omwe amakhala nawo.

ngati mukufuna kudziwa Kodi nyama za oviparous ndi ziti?, njira yoberekera iyi ndi zitsanzo ziti za nyama za oviparous, pitilizani kuwerenga nkhaniyi ndi PeritoAnimal. Mudzathetsa kukaikira kwanu konse ndikuphunzira zinthu zodabwitsa!

Kodi nyama za oviparous ndi ziti?

Inu oviparous nyama ndi omwe kuikira mazira amene amaswa, popeza adatuluka m'thupi la mayi. Feteleza ikhoza kukhala yakunja kapena yamkati, koma kuswa kumachitika nthawi zonse kunja, osati m'mimba mwa mayi.


Inu nsomba, amphibiya, zokwawa ndi mbalame, monga zinyama zina nthawi zina, zimakhala ndi oviparous. Kaŵirikaŵiri amaikira mazira awo m’zisa zotetezedwa bwino, kumene kamwana kake kamene kamakula mkati mwa dziralo kenako naswa. nyama zina zili kutchfuneralndiye kuti, amaikira mazira m'thupi m'malo mwa chisa ndipo anapiyewo amabadwa amoyo mwachindunji kuchokera mthupi la mayi. Izi zitha kuwoneka m'mitundu ina ya nsombazi ndi njoka.

THE kuswana kwa oviparous nyama ndi njira yosinthira. akhoza kupanga dzira limodzi kapena ambiri. Dzira lirilonse ndimasewera opangidwa ndi majini ochokera kwa mkazi (dzira) ndi majini ochokera kwa abambo (umuna). Umuna umayenera kupeza dzira, kaya mkati (thupi la mkazi), umuna ukakhala wamkati, kapena wakunja (mwachitsanzo, malo am'madzi), pamene umuna uli kunja.


Dzira ndi umuna zikakumana, timati dziralo latumizidwa ndipo limakhala a kamwana kamene kamayambira mkati mwa dzira. Nyama zambiri zimapanga mazira ambiri, koma osalimba kwambiri, ndipo mwayi wa njirayi ndikuti, popanga ana ambiri, pamakhala mwayi woti imodzi mwa izo ipulumuke zolusa. Zinyama zina zimatulutsa mazira ochepa, koma ndi akulu kwambiri komanso olimba ndipo izi zimawonjezera kuthekera kwakuti kukula kwa munthu watsopanoyu kudzafika kumapeto ndikuphwanyidwa, ndikupatsa munthu wina wamphamvu kwambiri, yemwe adzakhala ndi mwayi wambiri wopulumuka adani wobadwa.

Kukhala oviparous kumakhalanso ndi zovuta zake. Mosiyana ndi nyama za viviparous and ovoviviparous, zomwe zimanyamula ana awo mkati mwa matupi awo, nyama za oviparous amafunika kuteteza kapena kubisa mazira awo Pakukula kwake munyumba zotchedwa zisa. Mbalame nthawi zambiri zimakhala pamazira awo kuti zizitenthe. Pankhani ya nyama zomwe siziteteza zisa zawo, nthawi zonse zimakhala zotheka kuti chilombo chidzawapeza ndikuwanyeya, chifukwa chake ndikofunikira kusankha bwino malo a chisa ndikubisa mazira bwino.


Oviparous and Viviparous Animals - Kusiyana

THE kusiyana kwakukulu pakati pa nyama za oviparous ndi viviparous ndikuti nyama za oviparous sizikukula mwa mayi, pomwe nyama za viviparous zimasintha mitundu yonse mwa mayi wawo. Chifukwa chake, nyama za oviparous zimayikira mazira omwe amatuluka ndikumaswa ana. Pomwe nyama zosavomerezeka zimabadwa ngati zazing'ono ndipo siziyikira mazira.

Mbalame, zokwawa, amphibiya, nsomba zambiri, tizilombo, molluscs, arachnids ndi monotremes (nyama zomwe zili ndi mawonekedwe a reptilian) ndi nyama za oviparous. Nyama zambiri zimakhala zokhazokha. Pofuna kupewa kukaikira, timasonyeza a mndandanda wazinthu omwe amasiyanitsa oviparous ndi nyama za viviparous:

Oviparous:

  • Nyama zobalalika zimatulutsa mazira omwe amakula ndikumaswa atachotsedwa mthupi la mayi;
  • Mazira amatha kutayidwa kale ukadaulo kapena osakolola;
  • Feteleza ikhoza kukhala yamkati kapena yakunja;
  • Kukula kwa mluza kumachitika kunja kwazimayi;
  • Mluza umalandira michere kuchokera mu dzira la dzira;
  • Mpata wopulumuka ndi wotsika.

Zosangalatsa:

  • Nyama zowoneka bwino zimabereka ana amoyo athanzi, otukuka kwathunthu;
  • Samayikira mazira;
  • Umuna wa dzira nthawi zonse umakhala wamkati;
  • Kukula kwa mluza kumachitika mwa mayi;
  • Mpata wopulumuka ndi wokulirapo.

Zitsanzo za nyama za oviparous

Pali mitundu yambiri ya nyama yomwe imayikira mazira, pansipa ndi ina mwa iyo:

  • mbalame: mbalame zina zimangoyika dzira limodzi kapena awiri umuna, pamene ena anayika ambiri. Nthawi zambiri, mbalame zomwe zimaikira dzira limodzi kapena awiri, monga cranes. samakhala motalika m'chilengedwe. Mbalamezi zimathera nthawi yochuluka kusamalira ana awo kuti ziwathandize kukhala ndi moyo. Komano, mbalame zomwe kuikira mazira ambiri, monga zimphona wamba, amakhala ndi chiwerengerochi, ndipo safunika kuthera nthawi yochuluka ndi ana awo.
  • Amphibians ndi zokwawa: achule, ma newt ndi ma salamanders onse ndi amphibiya, amakhala mkati ndi kunja kwa madzi, koma amafunikira kuti akhalebe onyowa, komanso kuti aziikira mazira, popeza mazira awa alibe zipolopolo ndipo, mlengalenga, amatha kuuma msanga. Zokwawa, monga abuluzi, ng'ona, abuluzi, akamba ndi njoka, zimatha kukhala pamtunda kapena m'madzi, ndipo zimaikira mazira kunja kapena mkati mwake, kutengera mtundu wake. Popeza sanazolowere kusamalira zisa zawo, amaikira mazira ambiri kuti chiwerengerochi chikule.
  • Nsomba: nsomba zonse amaikira mazira m'madzi. Nsomba zazimayi zimathamangitsira mazira awo pakati momasuka, kuziika muzomera zam'madzi kapena kuziponya mu dzenje laling'ono lofukulidwa. Nsomba yamphongo imatulutsira umuna m'mazirawo. Nsomba zina, monga cichlids, zimasunga mazira ake mkamwa pambuyo pa umuna kuti ziziwateteza kuzilombo.
  • nyamakazi: ma arachnids ambiri, myriapods, hexapods ndi crustaceans omwe amapanga gulu la arthropod ndi oviparous. Akangaude, centipedes, nkhanu ndi njenjete ndi ena mwa mamiliyoni a nyamakazi zomwe zimayikira mazira, ndipo iwo anayika mazana a iwo. Ena amayikira mazira omwe atumizidwa kudzera mu umuna wamkati, pomwe ena amaikira mazira osakhala achonde omwe amafunikabe umuna.

Zitsanzo za Oviparous Mammals

Ndizosowa kwambiri kuti zinyama ziikire mazira. Gulu lochepa chabe lotchedwa monotremate limachita. Gulu ili likuphatikiza platypus ndi echidnas. Titha kuzipeza ku Australia komanso m'malo ena a Africa. Zamoyozi zimayikira mazira, koma mosiyana ndi nyama zonse za oviparous, monotremes amadyetsa ana awo mkaka komanso amakhala ndi tsitsi.